Gas-regulator.



E. G. LODGE.

GAS REGULATOR.

APPLICATION FILED JULY 19.1911.

Patented Apr. 15, 1919.

Suva u to: Edmund Gg ertfladge EIIJMUIJD GILBERT LODGE, OF PHILADELPHIA, PENNSYLVANIA.

GAS-REGULATOR.

Application filed July 19,. 1917'.

My invention relates to improvements in regulators particularly adapted to be used in connection with dental vulcanizers and my invention comprises in its construction pressure regulating mechanism for controlling the flow of gas to thelmrner 01 the vulcanizer. and also timing mechanism for shutting oil the flow of gas from the burner.

The object of my invention is to provide a valve having a piston therein controlled by the pressure in the vulcanizer and also 20 means for adjustii'ig the position of the said piston and thereby varying the operation of the piston in relation to the pressure in the vulcanizer; a further object of my invention is to provide a novel form of Sllll'COfi' valve,

ha ving a piston therein actuated by the timing mechanism; a still further object of my in 'ition is to so construct the said valves that ill v will operate freely and at the same time will he leak proof; it still further object of my invention is to provide a cam upon the timing mechanism which will actuate the piston of the shut-oil valve and close the latter and also stop the timing mechanism; and a still in her object is to so arrange the said earn that upon its being rotated v hand it wil release the time stop and also ti 1 iston of the shul'pt' valve into the position to again open said valve.

lieierring to the arc-om lanying d rawiug:

"fore i, is a 4Q vertical se on of the gas 1' big. 2. is a vertical se tion on 1g. 1 and Fig. 3 is a perspective view or lhc. cam for controlling the llllli'oll valve detached.

in the drawing in which like reference characters refer to like parts i represents the gas inlet pipe and 3 the shuto'li' valve in the said inlet pipe. The inlet pipe 1, enters chamhcr 4 formed in the regulating valve E cylinder 5 locate-ii upon the upper portion of the casing (in. The lower portion 7 (it the eating forms the pressure chamber ll. iletween the upper and lower portions 6 and 7 or" the casing is clau'lped a flexible diaphragm 55 ill The casing '1'" is provided with a screw tin" laden. stem is for securing the regulator Specification of Letters Patent.

Patented Apr, 15, 1919.

Serial No 181,476.

ton vulcanizer, (not shown on the drawing), and the steam pressure is admitted from the vulcanizer through the stem 12 into the pressure chamber 9 of the regulator.

A valve piston 14 slidably mounted in the gas chamber 4, in the c vlinder 5, and the upper end of said piston ll is adapted to open and close the port 15 formed in too cylinder The port 15 conuuunicates with the gas outlet pipe 16, through which gas is supplied to the burner oi the vulcanizer, (not shown on the drawing). The piston 14 is provided with a threaded rod 17, which enterms a threaded nut 18 secured in the center of the diaphragm 10. The piston 14 is thus carried by the (llitIJlll'llQID 10, and the pressure upon the latter will operate the piston sufficiently to open and close the port 15. Said piston 14: is surroululed hv a packing ring 20 to prevent the escape of" gas.

A handle is secured to the piston ll and the free end thereof projects through the elongated opening formed in the casing 63. By turning the handle. the threaded rod 17 may be screwed into or out of the nut 19 and the position of the piston l i ma v thus he aried in rel-athm to the gas port .15 in the cylinder 5. The handle is made oi fiat spring metal so as not to interfere with the vertical movement of the piston.

A pointer is provided upon the handle 22 and u )Oll the outer surface of the casin (3 termed a graduated scale, indicating degrees oi leat at which temperature the steam pressure will act upon the diapl'iragm and close oil the port 15. By changing the position of the handle the gas port 15 will he opened and closed by more. or less steam pressure as desircd.

The gas shut-oil valve 3 consists oi the vliudcr 30. in which is slidablv mounted a piston 31 adapted to close the apertures formed in the cylinder ill); which commuui catc with the pipe 1. A spring 33 acts upon the piston 31 and tends to move the piston into a position to close the said apertures t'ormcd in the cylinder 30.

A rod 34 is carried by the piston 31 and said rod extends through an opening formed in the end ol the valve cylinder 30. The outer end of thrrod 3- rcsls upon the face oi the cam 35, carried by the timing imcchanism 3l$ consisting ol the ordinary eloch' mechanism. having the hands removed and the said cam 35 secured upon the sia 't 37, which usually carries tl e hour hand,

The clock 36 is secured upon the casing by a bracket 38. The face 39 of the clock is graduated to indicate hours and minutes and a pointer 40 carried by the cam facilitates in setting the clock to runea certain time. The cam 35 may be rotated, in the direction of the arrow Fig. 2, by the handle 41 on the shaft 37, which will cause the in clined portion 42 of the cam 35 to push the rod 34 against the action of the spring 33 and open the valve 3.

By setting the pointer at the sixty minute mark on the dial the clock will run for one hour or until the pointer reaches the vertical position, at which position the rod will drop off the high part 43 of the cam 35 onto the low part i iof the cam, which will permit the spring 33 to act upon the piston 31 and close the shut-ofli valve 3. The cam 35 will continue to revolve until the inclined plate 45 uponthe pointer 40 strikes the stoprod l6, which latter is moved inwardly against the spring 47 and engages one of the wheels of the clock, thus stopping the clock, while the valve rod 3% is still on the low part i l of the cam, with the valve 3 closed. The stop-rod 4:6 is released and the clock started when the cam 35 is again turned by the handle 41.

Having thus described my invention I claim and desire to secure by Letters Patent;

1. In a device of the character described,- a casing, a diaphragm in the casing "forming a pressure chamber, a cylinder forming a gas chamber, said cylinder concentrically mounted upon the casing in relation to the diaphragm, a valve piston slidably mounted in said cylinder adapted to control the flow of gas through the cylinder, and means for adjustably connecting the piston with the diaphragm so that the position oi the piston may be changed in relation to the said diaphragm.

2. In a device oi the character described, acasing, a diaphragm in the casing forming a pressure chamber, a cylinder forming a .gas chamber, said cylinder concentrically mounted upon the casing in relation to the diaphragm, a valve piston slidably mounted 1n. said cylinder adapted to control the flow of gas through the cylinder, a rod having a screw thread thereon secured to the piston. a nut secured to the diaphraglm. 'iid nut having a screw threaded aperture formed therein to receive said rod, and means for turning the piston to adjust the same in relation to the diaphragm.

v 3. In a device of the character described, a casing, a diaphragm. in-the casing foriniiiig a pressure chamber, a cylinder upon said casing forming a chamber, a valve piston slidablymounted in said cylinder adapted to control the flow of gas through the cylinder,a screw threaded member connecting the piston with the diaphragm, and a handle for rotating the screw threaded member to adjust the piston in relation to the .diaphragm.

4:. In a device of the character described, a casing consisting of two sections, a diaphragm secured between the sections of the casing and forming a pressure chamber in one portion ofthe casing, a cylinder upon one section of the casing forming a 'gas chamber, a valve piston slidably mounted in the cylinder, a threaded member to adjustably connect the piston with the diaphragm, and a handle upon. the piston for rotating the latter to adjust the piston in relation to the diaphragm.

5. In adcvice of the character described, a casing consisting of two sections, a diaphragm secured between the sections of the ing the same, .and said casing having an elongated slot formed therein through which the handle projects to permit the free end of the handle to be rotated and thereby adjust the piston in relation to the diaphragm.

(S. In a device of the character described, a casing consisting of two sections, a diaphragm secured between the said sections forming a pressure chamber in one portion of the casing, a cylinder upon one section of the casing forming a gas chamber in the opposite portion of the casing. a valve piston adjustably connected with the diapluragm, said piston slidably mounted in the gas chamber, a handle for rotating the piston to adjust the latter in relation to the diapl'iragm, said casing having an elongated slot formed therein through which the handle projects to permit the free end of the handle to be rotated and thereby adjust the piston in relation to the diaphragm, a graduated scale upon the outside surface of the casinglocated adjacent to the said slot. and a pointer upon the handle located adjacent to the said scale.

In testimony whereof I aiiix my signature in presence of two witnesses.

EDMUND GILBERT LODGE. lVitnesses:

MEYER KnAUs, JOHN A. OBnmn. 

